import axios from "axios";
import FileSaver from "file-saver";
import errorCode from "@/utils/errorCode";
import { blobValidate } from "@/utils/common";
import { ElMessage, ElLoading } from "element-plus";
import { LoadingInstance } from "element-plus/es/components/loading/src/loading";
import { globalHeaders } from "@/utils/request";

const baseURL = import.meta.env.VITE_APP_BASE_API;
let downloadLoadingInstance: LoadingInstance;
export default {
  async oss(ossId: string | number) {
    const url = baseURL + "/resource/oss/download/" + ossId;
    downloadLoadingInstance = ElLoading.service({ text: "正在下载数据，请稍候", background: "rgba(0, 0, 0, 0.7)" });
    try {
      const res = await axios({
        method: "get",
        url: url,
        responseType: "blob",
        headers: globalHeaders()
      });
      const isBlob = blobValidate(res.data);
      if (isBlob) {
        const blob = new Blob([res.data], { type: "application/octet-stream" });
        FileSaver.saveAs(blob, decodeURIComponent(res.headers["download-filename"] as string));
      } else {
        this.printErrMsg(res.data);
      }
      downloadLoadingInstance.close();
    } catch (r) {
      console.error(r);
      ElMessage.error("下载文件出现错误，请联系管理员！");
      downloadLoadingInstance.close();
    }
  },
  async zip(url: string, name: string) {
    url = baseURL + url;
    downloadLoadingInstance = ElLoading.service({ text: "正在下载数据，请稍候", background: "rgba(0, 0, 0, 0.7)" });
    try {
      const res = await axios({
        method: "get",
        url: url,
        responseType: "blob",
        headers: globalHeaders()
      });
      const isBlob = blobValidate(res.data);
      if (isBlob) {
        const blob = new Blob([res.data], { type: "application/zip" });
        FileSaver.saveAs(blob, name);
      } else {
        this.printErrMsg(res.data);
      }
      downloadLoadingInstance.close();
    } catch (r) {
      console.error(r);
      ElMessage.error("下载文件出现错误，请联系管理员！");
      downloadLoadingInstance.close();
    }
  },
  async printErrMsg(data: any) {
    const resText = await data.text();
    const rspObj = JSON.parse(resText);
    const errMsg = errorCode[rspObj.code] || rspObj.msg || errorCode["default"];
    ElMessage.error(errMsg);
  }
};
